Would this stain be ok after almost 3 years. Only time can was opened was to add tint and then sealed. It was stored properly.

Thanks for taking the time to contact us. The Shelf Life is 3 years for unopened stain. I would suggest opening the cans and stirring them well to inspect their current state. The stain must be tested first. Apply a small amount to an inconspicuous area first and let it dry to ensure you're happy with the drying/results. Respectfully, Reggie